Car-truck.



H. L. ALLEN. CAB TRUCK.- APPLICATION FILED 02c. 13. ms.

Patenfed 1). 29,1916;

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HARRY L. ALLEN, 0F ALLIANCE, OHKO, ASSIGNOR 'IO AMERICAN STEEL FOUNDRIES',- 0?! NEW YORK, N. ":21, A CORPORATION 02 NEW JERSEY.

CABPTEUGK.

pecification of Letters latent.

Patented Feb- 29, 1916.

Application filed December 13, 1915. Serial No. 66,564.

To all whom it may concern Be it known that 1, Hanna L. ALLEN, a citizen of the United States, and resident of Alliance, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Car-Trucks, of which the following is a specification.

My invention relates to car trucks, and has particular reference to a novel bolster and sideframe construction.

It is common practice to cast the sideframes used in car trucks and to mount the bolsters in such manner that their ends are fitted in and guided by the frames in their vertical reciprocation. it has been found, likewise, that considerable wear takes place, which finally results in the loss of the sideframes of bolsters.

An objectin the present construction is to provide hardened steel wearing surfaces in both the bolster and sideframe, such hardened portions being cast as a part of the structures. The wearing surfaces may in this manner be formed of a metal which is extremely hard and resistent to wear, while the remaining portions of the sideframe and bolster may be of the usual mild steel especially adapted for the strains to which such members are subjected.

The invention will'be more readily understood by reference to the accompanying drawings, wherein Figure 1 is a side elevation of a sideframe and bolster, the bolster being shown in sectron; Fig. 2 1s a fragmentary plan View of the sideframe and bolster, the sideframe being broken away at a point above the b0l-- ster; Fig. 3 is a perspective view of the .insert for the bolster, and Fig. & is a perspective view of the insert for the columns of the sideframe.

In the drawings, a conventional form of cast sidefranie is shown having a compres- 'SlOIl member 10, tension member 11 and struts 12. The struts 12 form column guides between wh ch the bolster 13 15 mounted for vertical reciprocation. The bolster is provided on its side with lugs or lips 14, which I bear against the sides of the columns, the

bolster being inserted by passing the end thereof through the enlarged portion 15 of the sideframe. The upper inner portions of the columns or struts are bounded by the hard steel il -shaped plates 16, having. coun- Likewise, the wearing faces of the bolster are reinforced between the lugs 14 by 10- eating a plate 19 therein, this plate being 'n-ovided with countersunk openings 20. This plate, which is formed of a hard and wear-resisting steel, is likewise located in the mold in proper position and the metal allowed to flow therearound, thereby securely riveting the plate to the bolster. When the castings are finished, the parts which are subject to wear will be found to besuitably reinforced by a hard steel, which is in efiect an integral part of the casting.

It will be apparent that the means of se-. curing the wear plate in position may be varied, and such modifications as are within the scope of my claims I consider Within the spirit of my invention.

I claim:

1. In a car truck, the combination of a hardened steel plates cast in the desired loca- 7 tion, substantially as described.-

2. In a car truck, the comb nation of a cast if metal side frame and bolsten-said' bolster en-v gaging the sideframe "and being adapted for vertical reciprocation therein,- and hardened steel wear plates cast-in place in the-guiding columns of the-sid'efraine at the point of engagement with "said bolster, s'ubstantially'as described.

3, In a sideframe,the combination of (50m prcssion member, tension member and strut,

all formed in a single casting, and, a-hard metal wearing plate: bounding the edges of the struts at their upper portionsand rig idly held in place by being castin position,

substantially as described.

4. Ina sideframe, the combinationof compression member, tension member'a'nd struts, forming columns, and a hardmetal wear plate of channel shape in cross section applied to the upper portions of said columns,

said wear plates being provided with countersunk apertures and being adapted to be located in the mold, and the metal of the side-frame allowed to flow into said countersunk opening, thereby, in effect, riveting said W821! plate to said columns, substantially as described.

Signed at Alliance, Ohio,;this 6th day of December, 1915.

HARRY L. ALLEN.

Witnesses HAZEL I. DAVIS, \VILLIAM E. FETTERS. 

